Journal Article

UCP1 and UCP3 Expression Is Associated with Lipid and Carbohydrate Oxidation and Body Composition

Oliveira, Bruno A. P., Junior, Wilson S., Oliveira, Cristiana C., Marchry, Ana J., Marchini, Júlio S., Nonino, Carla B., Nicoletti, Carolina F., Noronha, Natália Y., Quinhoneiro, Driele C. G., Pinhel, Marcela A. S.

2016

Overview

Uncoupling proteins (UCPs) are located in the inner membrane of mitochondria. These proteins participate in thermogenesis and energy expenditure. This study aimed to evaluate how UCP1 and UCP3 expression influences substrate oxidation and elicits possible changes in body composition in patients submitted to bariatric surgery. This is a longitudinal study comprising 13 women with obesity grade III that underwent bariatric surgery and 10 healthy weight individuals (control group). Body composition was assessed by bioelectrical impedance. Carbohydrate and fat oxidation was determined by indirect calorimetry. Subcutaneous adipose tissue was collected for gene expression analysis. QPCR was used to evaluate UCP1 and UCP3 expression. Obese patients and the control group differed significantly in terms of lipid and carbohydrate oxidation. Six months after bariatric surgery, the differences disappeared. Lipid oxidation correlated with the percentage of fat mass in the postoperative period. Multiple linear regression analysis showed that the UCP1 and UCP3 genes contributed to lipid and carbohydrate oxidation. Additionally, UCP3 expression was associated with BMI, percentage of lean body mass, and percentage of mass in the postoperative period. UCP1 and UCP3 expression is associated with lipid and carbohydrate oxidation in patients submitted to bariatric surgery. In addition, UCP3 participates in body composition modulation six months postoperatively.

• Publisher: Public Library of Science,Public Library of Science (PLoS)
• Subject: Adipose tissue / Adiposity / Adult / Anthropometry / Bariatric Surgery / Bioelectricity / Biology and Life Sciences / Body Composition / Body composition (biology) / Body fat / Body mass / Body Mass Index / Body size / Calorimetry / Carbohydrate Metabolism / Carbohydrates / Case-Control Studies / Correlation analysis / Energy / Energy expenditure / Female / Gastrointestinal surgery / Gene expression / Genetic aspects / Humans / Internal medicine / Ion Channels - metabolism / Lean body mass / Lipid Metabolism / Lipid peroxidation / Lipids / Longitudinal studies / Medical schools / Medicine / Medicine and Health Sciences / Metabolism / Mitochondria / Mitochondrial Proteins - metabolism / Nutrition / Obesity / Oxidation / Oxidation-Reduction / Patients / Physical Sciences / Physiological aspects / Physiology / Protein expression / Proteins / Quality / Regression analysis / Substrates / Surgery / Thermogenesis / Uncoupling Protein 1 / Uncoupling Protein 3 / Weight control